The galaxy population of Abell 1367: photometric and spectroscopic data

TL;DR

This study provides comprehensive photometric and spectroscopic data for galaxies in Abell 1367, covering a large field and including new measurements of cluster membership and galaxy properties.

Contribution

It presents new optical and near-infrared photometric and spectroscopic data for 303-328 galaxies in Abell 1367, expanding the known galaxy sample and cluster membership information.

Findings

Photometric data for 303 galaxies down to specified limits.

Spectroscopic data for 328 objects, with 84 galaxy detections.

Confirmed 72 cluster member galaxies, including 11 newly identified.

Abstract

Photometric and spectroscopic observations of the galaxy population of the galaxy cluster Abell 1367 have been obtained, over a field of 34 by 90 arcmin, covering the cluster centre out to a radius of about 2.2 Mpc. U, B and R broad-band and H alpha narrow-band imaging observations were carried out using the Wide Field Camera (WFC) on the 2.5m INT. J and K near-infrared imaging was obtained using the Wide Field Camera (WFCAM) on the 3.8 m UKIRT, covering a somewhat smaller field of 0.75 square degrees on the cluster centre. The spectroscopic observations were carried out using a multifibre spectrograph (WYFFOS) on the 4.2 m WHT, over the same field as the optical imaging observations. Our photometric data give optical and near-infrared magnitudes for 303 galaxies in our survey regions, down to stated diameter and B-band magnitude limits, determined within R24 isophotal diameters. Our spectroscopic data of 328 objects provide 84 galaxies with detections of emission and/or absorption lines. Combining these with published spectroscopic data gives 126 galaxies within our sample for which recession velocities are known. Of these, 72 galaxies are confirmed as cluster members of Abell 1367, 11 of which are identified in this study. (abridged)